Locomotive-brake



(No Model.)

. W. B. GUERNSEY 8c W. B. TURNER.

I LQGOMOTIVE BRAKE. No. 259,005.

. applied.

UNITED STATES PATENT OFFICE.

'WILLIAM R. GUERNSEY, OE NORWICH, AND WILLIAM B. TURNER, OF NEW YORK, N. Y., ASSIGNORS OF ONE-THIRD TO THE TORREY AUTOMATIC BRAKE COMPANY, OF NEW YORK.

LOCOMOTlVE-BRAKE.

SPECIFICATION forming part of Letters Patent No. 259,0C5, dated June 6, 1882.

I Application filed March 14, 1882. (No model.)

To all whom it may concern Be it known that we, WILLIAM B. GUERN- SEY, of Norwich, in the county of Ohenango and State of New York, and WILLIAM B. 5 TURNER, of the city, county, and State of N ew York, have invented a new and useful Improvement in Locomotive-Brakes, of which the following is a specification.

It has long been customary to actuate car- :0 brakes through the medium of equalizing-levers acting on beams extending transversely beneath the deck and carrying the brake-shoes at their ends. Such a device as this is manifestly inapplicable to locomotives.

In locomotive-brakes shoes have been located between two adjacent wheels, so as when thrust apart to exert a sidewise pressure against the wheels, which causes serious injury to the bearings. Various plans have also been proposed for applying pressure to the top of a driving-wheel.

The subject of our invention is a top brake for the driving-wheels of locomotives, having shoes connected by equalizing-levers actuated 2 5 by a common steam-cylinder located between the wheels, the entire apparatus being mounted upon a single attaching or supporting frame,

permitting it to be readily secured to or removed from the frame of the locomotive.

In order that the invention may be fully understood, we will proceed to describe it with reference to the accompanying drawing, which is a side elevation of two driving-wheels and part of a locomotive-frame with our invention D D represent the driving-wheels, and F portions of the frame of the locomotive.-

A A are shoes hinged to equalizing-levers B B, which are fulcrumed at O G to the attach- 4o ing plate or frame E, upon which is secured a steamcylinder, G, in suitable position for acting on the brake-levers B through any suitable connections.

We have shown the piston-rod H attached to the center of a beam, I, the ends of which 5 are connected by links J to the levers B.

The entire apparatus being mounted on a plate or frame, E, permits it to be readily applied and fastened to the locomotive-frame F by bolts, as shown at K. The customary steam- 5o pipes being then connected, it is ready for use.

In the illustration here given the brakes will be applied by a thrust of piston-rod H.

If preferred, the cylinder may be mounted on the upper part of the frame, above the levers, as illustrated in dotted lines at- G, in which case the brakes will be applied by an upward pull on the levers. The brakes are retracted by springs in customary manner.

Having thus described our invention, the following is what we claim as new therein and desire to secure by Letters Patent:

1. A top brake for locomotives, having a pair of brake-shoes hinged to the ends of an equalizing-lever and applied to the top of two adjacent wheels by power acting in the plane of the wheels, or nearly so.

2. A top brake for locomotive-drivers, consisting of a pair of shoe-levers, an equalizinglever, and a motor-cylinder mounted on a common supporting plate or frame, by which the entire apparatus may be secured to the frame of the locomotive, substantially as herein described.

W. B. GUERNSEY. WILLIAM B. TURNER.

Witnesses:

FREDERICK GRASMUCK, v G. H. BITJEMAN. 

